Need help with fzr

a friend of mine bough an 09 FZR last year, ski has 17 hours so far, completely STOCK, the ski was not start in like 4 month, and now it does not do anything, dont crank, no light on dashboard, no fuel pump noise, nothing, its DEAD

- i tried changing the ecu and put mine, NOTHING
- tried another battery Nothing
- checked all plugs on the ski, nothing

does anybody have an idea of what might be happening to the ski, thanks in advance